Abstract：
:Adaptation to low oxygen conditions is essential for maintaining homeostasis and viability in oxygen-consuming multi-cellular tissues, including solid tumors. Central in these processes are the hypoxia-inducible transcription factors, HIF-1 and HIF-2, controlling genes involved in e.g. glucose metabolism and neovascularization. Tumor hypoxia and HIF expression have also been associated with a dedifferentiated phenotype and increased aggressiveness. In this report we show that the MAX interactor-1 (MXI1) gene is directly regulated by HIF proteins in neuroblastoma and breast cancer cells. HIF-binding and transactivation were detected within MXI1 gene regulatory sequences in the vicinity of the MXI1-0 promoter, leading to rapid induction of the alternate MXI1-0 isoform followed by a long-term induction of both the MXI1-0 and MXI1 isoforms. Importantly, knock-down of MXI1 had limited effect on MYC/MYCN activity under hypoxia, an observation that might be related to the different functional attributes of the two MXI1 isoforms.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Löfstedt T,Fredlund E,Noguera R,Navarro S,Holmquist-Mengelbier L,Beckman S,Påhlman S,Axelson Hdoi
10.1016/j.yexcr.2009.02.015subject
Has Abstractpub_date
2009-07-01 00:00:00pages
1924-36issue
11eissn
0014-4827issn
1090-2422pii
S0014-4827(09)00079-2journal_volume
315pub_type
杂志文章abstract：:Hematopoiesis is the hierarchical process in which all lineages of blood cells are produced by self-renewing hematopoietic stem cells (HSCs) in the bone marrow (BM). While the regulatory factors that maintain proper HSC function and lineage output under normal conditions are well understood, significantly less is know...
journal_title：Experimental cell research
pub_type： 杂志文章,评审
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abstract：:Among the cellular events that are associated with the process of endochondral ossification is an incremental increase in chondrocyte basal intracellular free Ca(2+) concentration ([Ca(2+)](i)) from 50 to 100 nM. To determine if this rise in [Ca(2+)](i) functionally participates in the maturational process of growth p...
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journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1995.1149
更新日期：1995-05-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.2000.4928
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2008.07.010
更新日期：2008-10-01 00:00:00
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doi：10.1016/j.yexcr.2015.10.003
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journal_title：Experimental cell research
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abstract：:Diabetic nephropathy (DN) is a major microvascular complication of diabetes that can lead to end-stage renal disease. Podocytes constitute the last barrier of glomerular filtration, whose damage are the direct cause of proteinuria. Dopamine receptors are involved in the regulation of diabetes-induced glomerular hyperf...
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